cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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usb.c (1458B)

      1/*
      2 * common code shared by usb tests
      3 *
      4 * Copyright (c) 2014 Red Hat, Inc
      5 *
      6 * Authors:
      7 *     Gerd Hoffmann <kraxel@redhat.com>
      8 *     John Snow <jsnow@redhat.com>
      9 *     Igor Mammedov <imammedo@redhat.com>
     10 *
     11 * This work is licensed under the terms of the GNU GPL, version 2 or later.
     12 * See the COPYING file in the top-level directory.
     13 */
     14#include "qemu/osdep.h"
     15#include "libqtest.h"
     16#include "hw/usb/uhci-regs.h"
     17#include "usb.h"
     18
     19void qusb_pci_init_one(QPCIBus *pcibus, struct qhc *hc, uint32_t devfn, int bar)
     20{
     21    hc->dev = qpci_device_find(pcibus, devfn);
     22    g_assert(hc->dev != NULL);
     23    qpci_device_enable(hc->dev);
     24    hc->bar = qpci_iomap(hc->dev, bar, NULL);
     25}
     26
     27void uhci_deinit(struct qhc *hc)
     28{
     29    g_free(hc->dev);
     30}
     31
     32void uhci_port_test(struct qhc *hc, int port, uint16_t expect)
     33{
     34    uint16_t value = qpci_io_readw(hc->dev, hc->bar, 0x10 + 2 * port);
     35    uint16_t mask = ~(UHCI_PORT_WRITE_CLEAR | UHCI_PORT_RSVD1);
     36
     37    g_assert((value & mask) == (expect & mask));
     38}
     39
     40void usb_test_hotplug(QTestState *qts, const char *hcd_id, const char *port,
     41                      void (*port_check)(void))
     42{
     43    char *id = g_strdup_printf("usbdev%s", port);
     44    char *bus = g_strdup_printf("%s.0", hcd_id);
     45
     46    qtest_qmp_device_add(qts, "usb-tablet", id, "{'port': %s, 'bus': %s}",
     47                         port, bus);
     48
     49    if (port_check) {
     50        port_check();
     51    }
     52
     53    qtest_qmp_device_del(qts, id);
     54
     55    g_free(bus);
     56    g_free(id);
     57}